Home / 22,202.86-30,639.59-12,131.09

Finding the Fourth Proportional to 22,202.86, 30,639.59 and 12,131.09

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Solution

The fourth proportional to 22,202.86, 30,639.59 and 12,131.09 is: 16,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.86 : 30,639.59 = 12,131.09 : x
  2. Step 2: Convert to fraction form
    22,202.86/30,639.59 = 12,131.09/x
  3. Step 3: Cross multiply
    22,202.86x = 30,639.59 × 12,131.09
  4. Step 4: Simplify right side
    22,202.86x = 371,691,410.00
  5. Step 5: Solve for x
    x = 371,691,410.00/22,202.86
  6. Step 6: Final answer
    x = 16,740.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.